Improved rope-guide for window-weights



una @sata #ce/eene EDWARD BURNHAM, OF FRAMINGHAM, MASSACHUSETTS.

' Leners Patent No. 89,553, dated May 4,1869.

IMPROVED, ROPE-GUIDE FOR WINDQW-WEIGHTS.

HM- The Schedule referred to in these Letters Patent and making part ofthe same.

To all persons to lwhom these presents may come:

Beit known that I EDWARD BURNHAM, of Framingham, in the county ofMiddlesex, and State of Massachusetts, have invented a new and useful orimproved Anti-Friction WVindow-Weight Rope-G uide; and I do herebydeclare the saine to be fully descn'bed iu the following specification,and represented in the accompanying drawings, of which- Figure 1 is atop view;

Figures 2 and 3 are end views;

Figure 4, a side elevation;

Figure 5, a longitudinal section; and' Figure 6, a transverse section ofit.

It is to be made of glass; and

It consists of a cylinder, A, having a circumscribing ilange, a,projecting from one end of it, and a small ear orprojection, b, extendedfrom its curved surface, near its other end.

It also `has a.l rope-channel, c, formed lengthwise through its side,and into each end of it, such channel being curved bothlongitndinally'and laterally in manner as represented.

This rope-guide, when used, is to be inserted in a cylindrical hole,made in the window-frame, the upper part of such Ihole being groovedlengthwise to receive the rope, and also to allow of the insertion ofthe guide in the hole, the projection b going through the groove.

Afterward, by turning the cylinder so as to bring the groove upward, theprojection b, by resting against the front of the weight-chamber, willprevent the guide from being drawn out of place.

The flange will also aid in preserving the guide in its place in thehole.

'The advantage of this rope-guide over many other glass guides in usevis that a round hole, bored with a. bit and grooved as described, isall that is necessary for its reception.

I claim the improved window-weight rope-guide, made as described, viz,as a cylinder having a flange,

channel, c, arranged as specified.

EDWARD BURNHAM. Witnesses:

R. H. EDDY,

SAMUEL N. PIPER.

a, at one end, a projection, b, at the other, and a rope'

